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Click to read the USB-32
character
USB-32
Introduce
Fully discrete analog stages without any OPA and couple caps in
the signal channels.
Non- feedback ACSS analog output stage .
6 groups non-feedback Class A power supplys for the whole gear (
another 1
linear PSU for the control parts ).
R-core transformers.
More than 20,000uf audio grade NOVER capacitors are used to ensure
ample and smooth power feed.
Uses most resistors are 1% DALE , most caps are the WIMA caps .All
transistors are Toshiba and Hitachi.
3 channels digital input :
RCA coaxial / Optical / USB
DAC output :
RCA / ACSS
USB Audio Class 2 High-speed Input from Windows / MAC / Linux
Supports High / full speed Asynchronous Transfer Mode up to 384K / 32Bit
ability .
Resolutions support 16 / 24 / 32 Bit with sampling rate support
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz ( USB )
Supports up to 24 Bit/192KHz ( SPDIF )
Supports 2X , 4X and 8X oversampling customers setting
Memorizes all settings and it could resume the last settings when
power on.
Sound Characteristics:
"Neutral but smoothness sounding ,it
doesn't sound skeletal or digital (or metallic). There's meat aplenty on
them bones . It's a sigma-delta DAC chip implementation without the
dryness, neutrality without the emotional disconnection" - John Darko
Feedback :
John Darko review the NFB-2.1
http://www.digitalaudioreview.net/2012/03/audio-gd-nfb-21-dual-wolfson-wm8741/
http://www.head-fi.org/forum/thread/512856/audio-gd-nfb-2-nfb-3-delivery-impression-thread/30
http://www.digitalaudioreview.net.au/index.php/audio-reviews/digital-source-reviews/item/177-audio-gd-nfb-2-dac-19-series
http://www.head-fi.org/products/audio-gd-nfb-2-and-nfb-3/reviews
1,
What's different between NFB-2.32 and NFB-3.2?
The main
differences are as follow:
1, The NFB-3.2 applies 2 groups of
class A parallel connection PSU supplied for analog output stage,
(the analog output stage power supply is very important, so we keep
the
2 groups of
class A parallel connection PSU here). Another 5 groups of linear
PSU's supplied for other parts.
The NFB-2.32 applies 6 groups class A
parallel connection PSU for the whole gear, and 1 linear PSU for
the control parts.
2, The NFB-3.2 applies
a toroidal transformer, the
NFB-2.32 applies an R-core transformer.
3, The NFB-3.2 applies mostly 1% SMD resistors and caps, the
NFB-2.32 applies mostly
DALE resistors and WIMA
caps.
4, The NFB-2.32 sound better
than the NFB-3.2 on detail , high / low extend but the different not
as the price different.
NFB-2.32 NFB-3.2
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Summarize
